1/*
2Copyright 2014 SAP SE
3
4Licensed under the Apache License, Version 2.0 (the "License");
5you may not use this file except in compliance with the License.
6You may obtain a copy of the License at
7
8    http://www.apache.org/licenses/LICENSE-2.0
9
10Unless required by applicable law or agreed to in writing, software
11distributed under the License is distributed on an "AS IS" BASIS,
12WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13See the License for the specific language governing permissions and
14limitations under the License.
15*/
16
17package driver
18
19import (
20	"bytes"
21	"math"
22	"testing"
23	"time"
24
25	p "github.com/SAP/go-hdb/internal/protocol"
26)
27
28type testCustomInt int
29
30func assertEqualInt(t *testing.T, dt p.DataType, v interface{}, r int64) {
31	cv, err := convertNamedValue(0, nil, dt, v)
32	if err != nil {
33		t.Fatal(err)
34	}
35	if cv.(int64) != r {
36		t.Fatalf("assert equal int failed %v - %d expected", cv, r)
37	}
38}
39
40func assertEqualIntOutOfRangeError(t *testing.T, dt p.DataType, v interface{}) {
41	_, err := convertNamedValue(0, nil, dt, v)
42	if err != ErrIntegerOutOfRange {
43		t.Fatalf("assert equal out of range error failed %s %v", dt, v)
44	}
45}
46
47func TestConvertInteger(t *testing.T) {
48
49	// integer data types
50	assertEqualInt(t, p.DtTinyint, 42, 42)
51	assertEqualInt(t, p.DtSmallint, 42, 42)
52	assertEqualInt(t, p.DtInteger, 42, 42)
53	assertEqualInt(t, p.DtBigint, 42, 42)
54
55	// custom integer data type
56	assertEqualInt(t, p.DtInteger, testCustomInt(42), 42)
57
58	// integer reference
59	i := 42
60	assertEqualInt(t, p.DtBigint, &i, 42)
61
62	// min max values
63	assertEqualIntOutOfRangeError(t, p.DtTinyint, minTinyint-1)
64	assertEqualIntOutOfRangeError(t, p.DtTinyint, maxTinyint+1)
65	assertEqualIntOutOfRangeError(t, p.DtSmallint, minSmallint-1)
66	assertEqualIntOutOfRangeError(t, p.DtSmallint, maxSmallint+1)
67	assertEqualIntOutOfRangeError(t, p.DtInteger, minInteger-1)
68	assertEqualIntOutOfRangeError(t, p.DtInteger, maxInteger+1)
69
70}
71
72type testCustomFloat float32
73
74func assertEqualFloat(t *testing.T, dt p.DataType, v interface{}, r float64) {
75	cv, err := convertNamedValue(0, nil, dt, v)
76	if err != nil {
77		t.Fatal(err)
78	}
79	if cv.(float64) != r {
80		t.Fatalf("assert equal float failed %v - %f expected", cv, r)
81	}
82}
83
84func assertEqualFloatOutOfRangeError(t *testing.T, dt p.DataType, v interface{}) {
85	_, err := convertNamedValue(0, nil, dt, v)
86	if err != ErrFloatOutOfRange {
87		t.Fatalf("assert equal out of range error failed %s %v", dt, v)
88	}
89}
90
91func TestConvertFloat(t *testing.T) {
92
93	realValue := float32(42.42)
94	doubleValue := float64(42.42)
95
96	// float data types
97	assertEqualFloat(t, p.DtReal, realValue, float64(realValue))
98	assertEqualFloat(t, p.DtDouble, doubleValue, doubleValue)
99
100	// custom float data type
101	assertEqualFloat(t, p.DtReal, testCustomFloat(realValue), float64(realValue))
102
103	// float reference
104	assertEqualFloat(t, p.DtReal, &realValue, float64(realValue))
105
106	// min max values
107	assertEqualFloatOutOfRangeError(t, p.DtReal, math.Nextafter(maxReal, maxDouble))
108	assertEqualFloatOutOfRangeError(t, p.DtReal, math.Nextafter(maxReal, maxDouble)*-1)
109
110}
111
112type testCustomTime time.Time
113
114func assertEqualTime(t *testing.T, v interface{}, r time.Time) {
115	cv, err := convertNamedValue(0, nil, p.DtTime, v)
116	if err != nil {
117		t.Fatal(err)
118	}
119	if !cv.(time.Time).Equal(r) {
120		t.Fatalf("assert equal time failed %v - %v expected", cv, r)
121	}
122}
123
124func TestConvertTime(t *testing.T) {
125
126	timeValue := time.Now()
127
128	// time data type
129	assertEqualTime(t, timeValue, timeValue)
130
131	// custom time data type
132	assertEqualTime(t, testCustomTime(timeValue), timeValue)
133
134	// time reference
135	assertEqualTime(t, &timeValue, timeValue)
136
137}
138
139type testCustomString string
140
141func assertEqualString(t *testing.T, dt p.DataType, v interface{}, r string) {
142	cv, err := convertNamedValue(0, nil, dt, v)
143	if err != nil {
144		t.Fatal(err)
145	}
146	if cv.(string) != r {
147		t.Fatalf("assert equal string failed %v - %s expected", cv, r)
148	}
149}
150
151func TestConvertString(t *testing.T) {
152
153	stringValue := "Hello World"
154
155	// string data types
156	assertEqualString(t, p.DtString, stringValue, stringValue)
157
158	// custom string data type
159	assertEqualString(t, p.DtString, testCustomString(stringValue), stringValue)
160
161	// string reference
162	assertEqualString(t, p.DtString, &stringValue, stringValue)
163
164}
165
166type testCustomBytes []byte
167
168func assertEqualBytes(t *testing.T, dt p.DataType, v interface{}, r []byte) {
169	cv, err := convertNamedValue(0, nil, dt, v)
170	if err != nil {
171		t.Fatal(err)
172	}
173	if bytes.Compare(cv.([]byte), r) != 0 {
174		t.Fatalf("assert equal bytes failed %v - %v expected", cv, r)
175	}
176}
177
178func TestConvertBytes(t *testing.T) {
179
180	bytesValue := []byte("Hello World")
181
182	// bytes data types
183	assertEqualBytes(t, p.DtString, bytesValue, bytesValue)
184	assertEqualBytes(t, p.DtBytes, bytesValue, bytesValue)
185
186	// custom bytes data type
187	assertEqualBytes(t, p.DtString, testCustomBytes(bytesValue), bytesValue)
188	assertEqualBytes(t, p.DtBytes, testCustomBytes(bytesValue), bytesValue)
189
190	// bytes reference
191	assertEqualBytes(t, p.DtString, &bytesValue, bytesValue)
192	assertEqualBytes(t, p.DtBytes, &bytesValue, bytesValue)
193
194}
195